CalcTape makes the arithmetic process visible - you can do multiple calculations and subsequently correct or change all numbers and operations. Made a mistake? No problem: Mark the wrong number in place via double-tap and correct it instantly. All results are being adjusted automatically! CalcTape is a revolutionary new kind of pocket calculator.With CalcTape, also extensive calculations remain clearly structured:

- Input a long list of values to be calculated and never lose the overview - just like with an adding machine with a paper tape.

- You can use intermediate results to structure and to check your results.

- If you should later change individual mathematical expressions, then the complete calculation is automatically updated.